Base | Representation |
---|---|
bin | 1000001001110… |
… | …01000110000101 |
3 | 11202200122020011 |
4 | 10010321012011 |
5 | 120002010201 |
6 | 10441510221 |
7 | 1460213356 |
oct | 404710605 |
9 | 152618204 |
10 | 68391301 |
11 | 35672440 |
12 | 1aaa2371 |
13 | 11227534 |
14 | 9123d2d |
15 | 600e151 |
hex | 4139185 |
68391301 has 16 divisors (see below), whose sum is σ = 77654016. Its totient is φ = 59670000.
The previous prime is 68391293. The next prime is 68391307. The reversal of 68391301 is 10319386.
It is a cyclic number.
It is not a de Polignac number, because 68391301 - 23 = 68391293 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68391307) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43906 + ... + 45436.
It is an arithmetic number, because the mean of its divisors is an integer number (4853376).
Almost surely, 268391301 is an apocalyptic number.
It is an amenable number.
68391301 is a deficient number, since it is larger than the sum of its proper divisors (9262715).
68391301 is a wasteful number, since it uses less digits than its factorization.
68391301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1704.
The product of its (nonzero) digits is 3888, while the sum is 31.
The square root of 68391301 is about 8269.9033247070. The cubic root of 68391301 is about 408.9469326956.
The spelling of 68391301 in words is "sixty-eight million, three hundred ninety-one thousand, three hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.089 sec. • engine limits •